Branson apologises to S.Africa for racially exclusionary tweet

British billionaire and Virgin founder Richard Branson apologised on Tuesday for posting a picture on Twitter he admitted "clearly lacked diversity" as he launched his new entrepreneurship development centre in South Africa. On Monday he tweeted a picture of himself and eight others captioned "We aim to become the heart of entrepreneurship in Southern Africa". "Where did you find so many white people in South Africa?" one tweet said.